31343977

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 38823840

約数和(自身を除く): 7479863

約数列:

[1, 7, 19, 49, 131, 133, 257, 917, 931, 1799, 2489, 4883, 6419, 12593, 17423, 33667, 34181, 121961, 235669, 239267, 639673, 1649683, 4477711, 31343977]

約数ペア:

[(1, 31343977), (7, 4477711), (19, 1649683), (49, 639673), (131, 239267), (133, 235669), (257, 121961), (917, 34181), (931, 33667), (1799, 17423), (2489, 12593), (4883, 6419)]